HPCC-11529 Add column sort by Cluster

Add the ability to sort by cluster name. Also added sort by published by.

Signed off by: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Merge pull request #5959 from miguelvazq/HPCC-11529

HPCC-11529 Add column sort by Cluster

Reviewed-By: Gordon Smith <gordon.smith@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>